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authorSuzuki K Poulose <suzuki.poulose@arm.com>2018-01-02 11:25:31 +0000
committerWill Deacon <will.deacon@arm.com>2018-01-02 16:43:12 +0000
commit66582787314ed0bd1dcac3f7a2b98ff71f3fb653 (patch)
tree93b89e1fd0c657896cc4e489ee2547d79c142006 /drivers
parent52cac1103af3283c7e4386b796da9cc92c3320e0 (diff)
arm_pmu: Use of_cpu_node_to_id helper
Use the new generic helper, of_cpu_node_to_id(), to map a a phandle to the logical CPU number while parsing the PMU irq affinity. Cc: Will Deacon <will.deacon@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/perf/arm_pmu_platform.c15
1 files changed, 3 insertions, 12 deletions
diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platform.c
index 91b224eced18..46501cc79fd7 100644
--- a/drivers/perf/arm_pmu_platform.c
+++ b/drivers/perf/arm_pmu_platform.c
@@ -82,19 +82,10 @@ static int pmu_parse_irq_affinity(struct device_node *node, int i)
return -EINVAL;
}
- /* Now look up the logical CPU number */
- for_each_possible_cpu(cpu) {
- struct device_node *cpu_dn;
-
- cpu_dn = of_cpu_device_node_get(cpu);
- of_node_put(cpu_dn);
-
- if (dn == cpu_dn)
- break;
- }
-
- if (cpu >= nr_cpu_ids) {
+ cpu = of_cpu_node_to_id(dn);
+ if (cpu < 0) {
pr_warn("failed to find logical CPU for %s\n", dn->name);
+ cpu = nr_cpu_ids;
}
of_node_put(dn);

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